Jack Dorsey Launches Open Source Team Chat App Built On Nostr

Tech entrepreneur Jack Dorsey just announced a new group chat platform called Buzz. Built to reduce reliance on traditional corporate tools like Slack, the app is open source and designed for teams of people and artificial intelligence agents working together in a shared space.

According to parent company Block, the platform runs on the decentralized Nostr protocol. Users can chat, plan projects, write code, and manage tasks without depending on closed, proprietary networks. Block executives noted that as companies increasingly adopt artificial intelligence, teams need open spaces to collaborate rather than walled gardens.

This release fits into Dorsey's broader push for decentralization across the technology sector. Through companies like Square and Cash App, he has consistently supported open protocols and Bitcoin adoption. Traders and privacy advocates will likely watch to see how quickly developers and modern teams adopt this new workspace alternative.